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This book focuses on building production-grade mobile systems that can survive real-world scale, failures, and large teams. It moves beyond app structure into reliability, offline-first design, performance engineering, and system-level thinking. You learn how to handle server state synchronization, offline queues, conflict resolution, and real-world failure modes across networking, rendering, native crashes, and deployments. It also introduces performance profiling with strict metrics for FPS, memory, bundle size, and startup time, along with advanced optimization techniques for lists, images, and the JavaScript runtime. On the production side, you work with observability tools like crash reporting, structured logging, and performance tracing, plus CI/CD pipelines, OTA updates, and safe rollback strategies. The book also covers security hardening, feature flags, and architecture governance for large teams, ending with system design-style projects like a chat app and a super app that require offline support, sync engines, and scalable modular architecture.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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